Home / 853,123,754.87-1,177,347,140.90-476,780,331.52

Finding the Fourth Proportional to 853,123,754.87, 1,177,347,140.90 and 476,780,331.52

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Solution

The fourth proportional to 853,123,754.87, 1,177,347,140.90 and 476,780,331.52 is: 657,977,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,123,754.87 : 1,177,347,140.90 = 476,780,331.52 : x
  2. Step 2: Convert to fraction form
    853,123,754.87/1,177,347,140.90 = 476,780,331.52/x
  3. Step 3: Cross multiply
    853,123,754.87x = 1,177,347,140.90 × 476,780,331.52
  4. Step 4: Simplify right side
    853,123,754.87x = 561,335,960,152,426,176
  5. Step 5: Solve for x
    x = 561,335,960,152,426,176/853,123,754.87
  6. Step 6: Final answer
    x = 657,977,177.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.